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Gmsh

Introduction​

Getting started​

subroutine test1
  type( gmsh_ ) :: gmsh
  integer( i4b ) :: ierr
  CALL GMSH_INIT
  ierr = gmsh%initialize()
  ierr = gmsh%open(fileName="t1.msh" )
  ierr = gmsh%write(fileName="t2.msh")
  ierr = gmsh%finalize()
  ierr = gmsh%clear()
  CALL GMSH_FINAL
end subroutine test1

Structure​

Status of these components is given below.

  • GmshOption [OK!]
  • GmshModel [OK!]
  • GmshView
  • GmshPlugin
  • GmshGraphics [OK!]
  • GmshFLTK [OK!]
  • GmshParser
  • GmshOnelab
  • GmshLogger
TYPE :: Gmsh_
  PRIVATE
  TYPE( GmshModel_ ), PUBLIC, POINTER :: model => NULL( )
  ! TYPE( GmshView_ ), PUBLIC, POINTER :: view => NULL( )
  !! TODO
  TYPE( GmshOption_ ), PUBLIC, POINTER :: option => NULL()
  ! TYPE( GmshPlugin_ ), PUBLIC, POINTER :: plugin => NULL( )
  !! TODO
  ! TYPE( GmshLogger_ ), PUBLIC, POINTER :: logger => NULL( )
  !! TODO
  TYPE( GmshGraphics_ ), PUBLIC, POINTER :: graphics => NULL()
  TYPE( GmshFLTK_ ), PUBLIC, POINTER :: fltk => NULL()
  TYPE( GmshOnelab_ ), PUBLIC, POINTER :: onelab => NULL()
  LOGICAL( LGT ) :: isInitiated = .FALSE.
END TYPE Gmsh_

Methods​

Initialize​

This function will start the Gmsh engine, and it allocates the pointer fields.

FUNCTION Initialize( obj ) RESULT( ans )
  CLASS( Gmsh_ ), INTENT( INOUT ) :: obj
  INTEGER( I4B ) :: ans

Finalize​

This function will stop the Gmsh engine

FUNCTION finalize( obj ) RESULT( ans )
  CLASS( Gmsh_  ), INTENT( INOUT ) :: obj
  INTEGER( I4B ) :: ans

Final​

This function will stop the Gmsh engine

SUBROUTINE GMSH_FINAL
END SUBROUTINE GMSH_FINAL

Open​

Open a file. Equivalent to the File->Open menu in the Gmsh app. Handling of the file depends on its extension and/or its contents: opening a file with model data will create a new model.

FUNCTION Open( obj, fileName ) RESULT( ans )
  CLASS( Gmsh_ ), INTENT( INOUT ) :: obj
  CHARACTER( LEN = * ), INTENT( IN ) :: fileName
  INTEGER( I4B ) :: ans
END FUNCTION Open

Merge​

Merge a file. Equivalent to the File->Merge menu in the Gmsh app. Handling of the file depends on its extension and/or its contents. Merging a file with model data will add the data to the current model.

FUNCTION Merge( obj, fileName ) RESULT( ans )
  CLASS( Gmsh_ ), INTENT( INOUT ) :: obj
  CHARACTER( LEN = * ), INTENT( IN ) :: fileName
  INTEGER( I4B ) :: ans
END FUNCTION Merge

Write​

Write a file. The export format is determined by the file extension.

FUNCTION Write( obj, fileName ) RESULT( ans )
  CLASS( Gmsh_ ), INTENT( INOUT ) :: obj
  CHARACTER( LEN = * ), INTENT( IN ) :: fileName
  INTEGER( I4B ) :: ans
END FUNCTION Write

Clear​

Clear all loaded models and post-processing data, and add a new empty model.

FUNCTION Clear( obj ) RESULT( ans )
  CLASS( Gmsh_ ), INTENT( INOUT ) :: obj
  INTEGER( I4B ) :: ans
END FUNCTION Clear